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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 01 Sep 2013 (Sunday) 12:25
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Problem with flash

 
tbsguy18
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Sep 01, 2013 12:25 |  #1

I know this is something as simple as an error on my part, but I'm not sure what I'm doing wrong. I keep getting this weird weird lighting (on the left) from my external flash when I hold my camera on its side to shoot full body portraits. Any help would be appreciated!

(dont mind the blurriness of the picture, its just the first one I grabbed)

IMAGE: http://i1232.photobucket.com/albums/ff362/jaker182/IMG_5828_zps91aacf12.jpg
IMAGE LINK: http://s1232.photobuck​et.com …5828_zps91aacf1​2.jpg.html  (external link)

Gripped Canon 60D 50 f/1.8---17-50 f/2.8---70-200 f/4 L

  
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Wilt
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Sep 01, 2013 12:29 |  #2

Can you repost the photo with intact EXIF information (not 'save for web')? ...need more clues. Suspicion that there is something related to shutter curtain motion. Perhaps it recorded the bright ambient (on the right side) and recorded both flash and ambient (on the left)...so then I wonder if you had failed to enable HSS mode on the flash itself.
BTW, do you hold camera with grip upward (toward the sky) or with grip downward (nearest the ground) when you rotate your camera to Portait orientation?
And which brand/model of flash were you using?


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jcolman
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Sep 01, 2013 12:40 |  #3

Looks like you are shooting at a shutter speed that is faster than your sync speed. The left side of the shot is lit by your flash. The right side is being blocked by your shutter curtain.


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tbsguy18
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Sep 01, 2013 13:05 |  #4

Wilt wrote in post #16258839 (external link)
Can you repost the photo with intact EXIF information (not 'save for web')? ...need more clues. Suspicion that there is something related to shutter curtain motion. Perhaps it recorded the bright ambient (on the right side) and recorded both flash and ambient (on the left)...so then I wonder if you had failed to enable HSS mode on the flash itself.
BTW, do you hold camera with grip upward (toward the sky) or with grip downward (nearest the ground) when you rotate your camera to Portait orientation?
And which brand/model of flash were you using?

How do I repost it with the EXIF data?
I rotate the camera to the left...so I guess toward the sky if thats what you are suggesting? The buttons and dial on the grip are pointed up lol.
I use a Yongnuo YN-560 ii


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Wilt
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Sep 01, 2013 13:23 |  #5

tbsguy18 wrote in post #16258914 (external link)
How do I repost it with the EXIF data?

If you answer the shutter speed question, we don't need the EXIF.

But to answer the EXIF question, many postprocessing programs strip off the EXIF information, if in their Output dialogue you select the 'output for web' option. OTOH, maybe your photoshare site strips it off even if the EXIF is intact when you output the JPG file for posting!

tbsguy18 wrote in post #16258914 (external link)
I rotate the camera to the left...so I guess toward the sky if thats what you are suggesting? The buttons and dial on the grip are pointed up lol.

Thx, now we know the curtain travel direction is from camera left to camera right while in Portrait orientation...now we merely need to know what the shutter speed was, when you took that shot.

tbsguy18 wrote in post #16258914 (external link)
I use a Yongnuo YN-560 ii

Thx, now we know the flash is HSS capable, so maybe you merely need to go into the flash menu on the Yungnuo to enable HSS.


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tbsguy18
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Sep 01, 2013 13:32 |  #6

Wilt wrote in post #16258951 (external link)
If you answer the shutter speed question, we don't need the EXIF.

But to answer the EXIF question, many postprocessing programs strip off the EXIF information, if in their Output dialogue you select the 'output for web' option. OTOH, maybe your photoshare site strips it off even if the EXIF is intact when you output the JPG file for posting!



Thx, now we know the curtain travel direction is from camera left to camera right while in Portrait orientation...now we merely need to know what the shutter speed was, when you took that shot.



Thx, now we know the flash is HSS capable, so maybe you merely need to go into the flash menu on the Yungnuo to enable HSS.

The shutter speed was 1/800.
There isn't much of a menu on the flash though...
I think photobucket strips off the EXIF data. I just checked the photo after I saved it from photoshop and it still had the the EXIF data


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Wilt
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Sep 01, 2013 13:36 |  #7

Your photo is indicating that although the shutter is set higher than X-sync speed, the flash itself is not going into HSS mode. Yet we know that your flash model is HSS capable. Three possible reasons for that...


  1. It is possible to disable HSS in HSS-capable flash units, so that is what I speculate might the source of your problem.
  2. Your flash not set to be in 'ETTL' mode (which is needed for HSS support), but it is simply in 'TTL' mode on its menu (there is a considerable difference...the 'TTL' mode applies to Canon film cameras, but 'ETTL' applies to Canon dSLRs only)
  3. electrical contact issue between camera and flash, causing the flash to not go into 'ETTL' because it does not seem to have proper communication to an ETTL capable camera, so it stays in 'TTL' mode

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tbsguy18
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Sep 01, 2013 13:59 |  #8

Wilt wrote in post #16258985 (external link)
Your photo is indicating that although the shutter is set higher than X-sync speed, the flash itself is not going into HSS mode. Yet we know that your flash model is HSS capable. Three possible reasons for that...

  1. It is possible to disable HSS in HSS-capable flash units, so that is what I speculate might the source of your problem.
  2. Your flash not set to be in 'ETTL' mode (which is needed for HSS support), but it is simply in 'TTL' mode on its menu (there is a considerable difference...the 'TTL' mode applies to Canon film cameras, but 'ETTL' applies to Canon dSLRs only)

^Are those 2 things something that could only be adjust on the flash unit itself?

Wilt wrote in post #16258985 (external link)
3. electrical contact issue between camera and flash, causing the flash to not go into 'ETTL' because it does not seem to have proper communication to an ETTL capable camera, so it stays in 'TTL' mode


Gripped Canon 60D 50 f/1.8---17-50 f/2.8---70-200 f/4 L

  
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Wilt
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Sep 01, 2013 14:08 |  #9

Yes, both #1and #2 are settings that should be in a flash menu on the flash itself.


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tbsguy18
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Sep 01, 2013 14:11 |  #10

Wilt wrote in post #16259074 (external link)
Yes, both #1and #2 are settings that should be in a flash menu on the flash itself.

Dam. I don't really have a "flash menu"...its kinda basic. Just an LCD screen and I can change the mode, power, zoom...


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Foodguy
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Sep 01, 2013 14:26 |  #11

jcolman wrote in post #16258863 (external link)
Looks like you are shooting at a shutter speed that is faster than your sync speed. The left side of the shot is lit by your flash. The right side is being blocked by your shutter curtain.

Doesn't the shutter curtain travel in the (90 degree) other direction?... along the longer axis?


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gort
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Sep 01, 2013 14:33 |  #12

Wilt wrote in post #16258951 (external link)
Thx, now we know the flash is HSS capable, so maybe you merely need to go into the flash menu on the Yungnuo to enable HSS.

Wilt (& tbsguy18),

The Yongnuo YN-560 II is not HSS capable.


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tbsguy18
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Sep 01, 2013 14:35 |  #13

gort wrote in post #16259126 (external link)
Wilt (& tbsguy18),

The Yongnuo YN-560 II is not HSS capable.

Yea, I was just double checking on that. Thanks!
As long as I'm at 1/250 or slower, I have no problems :)
Time for a new flash! lol


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SkipD
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Sep 01, 2013 14:38 |  #14

Foodguy wrote in post #16259106 (external link)
Doesn't the shutter curtain travel in the (90 degree) other direction?... along the longer axis?

Shutter blades in Canon's DSLRs travel the shorter of the two distances - along the shorter dimension.

In the "olden" days when 35mm cameras had focal plane shutters made of rubberized fabric, they almost always traveled the longer distance.


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Foodguy
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Sep 01, 2013 14:50 as a reply to  @ SkipD's post |  #15

^learn something new, every day.:D


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